Which products and versions are affected by CVE-2020-13951?

Affected: Openmeetings (Apache) versions >= Apache OpenMeetings 4.0.0 - 5.0.0; org.apache.openmeetings:openmeetings-parent (maven) versions >= 4.0.0. The full list is in the CVE brief.

Is CVE-2020-13951 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2020-13951 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2020-13951?

Public exploit code is available.

Is there a fix for CVE-2020-13951?

Fixed versions are available, including Openmeetings <=5.0.0, org.apache.openmeetings:openmeetings-parent 5.1.0, Openmeetings 5.0.0.

How urgently should CVE-2020-13951 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2020-13951

Q: What is CVE-2020-13951?

Attackers can use public NetTest web service of Apache OpenMeetings 4.0.0-5.0.0 to organize denial of service attack.

Q: How urgently should CVE-2020-13951 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

HighPublic exploit

Denial of service in Apache OpenMeetings

Published Feb 10, 2022 · Updated Jul 8, 2026 · Also known as GHSA-g37q-26qx-8v2m

Key Facts

Patch immediately

CVE-2020-13951 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Openmeetings (Apache), org.apache.openmeetings:openmeetings-parent (maven).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 69% probability of exploitation in the next 30 days.
Fixed versions are available, including Openmeetings <=5.0.0, org.apache.openmeetings:openmeetings-parent 5.1.0, Openmeetings 5.0.0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS (30-day exploit likelihood)

69%

Higher than 99.3% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2020-13951 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Attackers can use public NetTest web service of Apache OpenMeetings 4.0.0-5.0.0 to organize denial of service attack.

Affected Products

3 affected entries in total

Product	Affected versions	Fixed in
OpenmeetingsApache	>= Apache OpenMeetings 4.0.0 - 5.0.0	5.0.0
org.apache.openmeetings:openmeetings-parentmaven	>= 4.0.0	5.1.0

Patched Releases

Openmeetings

<=5.0.0

org.apache.openmeetings:openmeetings-parent

5.1.0

Timeline

Publicly disclosed
Feb 10, 2022
Last updated
Jul 8, 2026

Weakness Type

CWE-400 Uncontrolled Resource Consumption

References

4 more references in the full CVE brief

FAQ

Common Questions.

Attackers can use public NetTest web service of Apache OpenMeetings 4.0.0-5.0.0 to organize denial of service attack.
Affected: Openmeetings (Apache) versions >= Apache OpenMeetings 4.0.0 - 5.0.0; org.apache.openmeetings:openmeetings-parent (maven) versions >= 4.0.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Openmeetings <=5.0.0, org.apache.openmeetings:openmeetings-parent 5.1.0, Openmeetings 5.0.0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2020-13951 Running On Your Attack Surface?

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